Method of producing inosine and/or guanosine
    1.
    发明授权
    Method of producing inosine and/or guanosine 失效
    产生肌苷和/或鸟苷的方法

    公开(公告)号:US4452889A

    公开(公告)日:1984-06-05

    申请号:US389459

    申请日:1982-06-17

    摘要: A method of producing inosine and/or guanosine comprising cultivating a microorganism in a medium containing a carbohydrate, in which method a carbohydrate is added either continuously or intermittently to the medium when and in the state that the concentration of the carbohydrate in the medium is less than about 1 percent so that the carbohydrate concentration of the medium is maintained below about 1 percent.

    摘要翻译: 一种生产肌苷和/或鸟苷的方法,包括在含有碳水化合物的培养基中培养微生物,其中,当培养基中碳水化合物的浓度较低时,以及在培养基中碳水化合物浓度较低的情况下,碳水化合物连续地或间歇地加入到培养基中 超过约1%,使得培养基的碳水化合物浓度保持在约1%以下。

    Method of producing guanosine
    2.
    发明授权
    Method of producing guanosine 失效
    制备鸟苷的方法

    公开(公告)号:US4593000A

    公开(公告)日:1986-06-03

    申请号:US688286

    申请日:1985-01-07

    IPC分类号: C12P19/40 C12R1/07 C12N1/00

    CPC分类号: C12P19/40

    摘要: A method of producing guanosine using an adenine-requiring microorganism, in which method the amount of the adenine-containing material to be added to the initial medium is restricted to not more than 50% of the required amount and, after the adenine-containing material added to the initial medium has been consumed almost completely, the remainder of the required amount is added intermittently or continuously.

    摘要翻译: 使用需要腺嘌呤的微生物生产鸟苷的方法,其中添加到初始培养基中的含腺嘌呤的材料的量被限制在不超过要求量的50%,并且在含腺嘌呤的材料 添加到初始培养基已经几乎完全消耗,所需量的其余部分间歇地或连续地添加。

    Producing nucleosides
    3.
    发明授权
    Producing nucleosides 失效
    生产核苷

    公开(公告)号:US4578336A

    公开(公告)日:1986-03-25

    申请号:US444457

    申请日:1982-11-24

    摘要: In a fermentation procedure for the production of nucleosides i.e. inosine and/or guanosine using an adenine-requiring microorganism, the fermentation is carried out by allowing a source of adenine to be present in the medium in an excess amount over the amount of adenine that would be conductive to a maximum yield of inosine and/or guanosine in aerobic culture using ordinary air, and cultivating the microorganism while an oxygen-rich gas is bubbled into the medium. Thus, inosine and/or guanosine are accumulated in high yield in the fermentation broth.

    摘要翻译: 在使用需要腺嘌呤的微生物生产核苷(即肌苷和/或鸟苷)的发酵方法中,通过使腺嘌呤源以超过腺嘌呤的量存在于培养基中的方式进行发酵, 在使用普通空气的需氧培养中导致肌苷和/或鸟苷的最大产率,并且在富氧气体鼓泡入培养基的同时培养微生物。 因此,在发酵液中以高收率积累肌苷和/或鸟苷。

    Culture of Rhizobium cobalaminogenum capable of producing vitamin
B.sub.12 and mutants thereof
    7.
    发明授权
    Culture of Rhizobium cobalaminogenum capable of producing vitamin B.sub.12 and mutants thereof 失效
    能够生产维生素B12及其突变体的钴绿假单胞菌的培养物

    公开(公告)号:US5538888A

    公开(公告)日:1996-07-23

    申请号:US487676

    申请日:1995-06-07

    摘要: There is provided an economical, efficient and industrially useful method of producing vitamin B.sub.12 which comprises cultivating a microorganism belonging to Rhizobium cobalaminogenum which is capable of producing vitamin B.sub.12 in a culture medium to produce vitamin B.sub.12 and recovering the produced vitamin B.sub.12. There are also provided a microorganism belonging to Rhizobium cobalaminogenum which is capable of producing vitamin B.sub.12 and a microorganism Rhizobium cobalaminogenum 27B74 (FERM BP-4429).

    摘要翻译: 提供了一种生产维生素B12的经济,有效和工业上有用的方法,其包括培养能够在培养基中产生维生素B12以产生维生素B12并回收所生产的维生素B12的属于钴绿假单胞菌属的微生物。 还提供了能够产生维生素B12和微生物根瘤菌根瘤菌27B74(FERM BP-4429)的属于钴绿假单胞菌属的微生物。

    Method of producing vitamin B12 using rhizobium cobalaminogenum ferm
BP-4429
    8.
    发明授权
    Method of producing vitamin B12 using rhizobium cobalaminogenum ferm BP-4429 失效
    使用根瘤菌钴绿假单胞菌BP-4429生产维生素B12的方法

    公开(公告)号:US5545538A

    公开(公告)日:1996-08-13

    申请号:US318555

    申请日:1994-10-05

    摘要: There is provided an economical, efficient and industrially useful method of producing vitamin B.sub.12 which comprises cultivating a microorganism belonging to Rhizobium cobalaminogenum FERM BP-4429 which is capable of producing vitamin B.sub.12 in a culture medium and recovering the vitamin B.sub.12. The microorganism is isolated from soil and has no formation of acids from L-arabinose. Further, there are no straight chain fatty acids 21:1 or 19:0.

    摘要翻译: 提供了生产维生素B12的经济,有效和工业上有用的方法,其包括培养能够在培养基中产生维生素B12并回收维生素B12的属于钴绿假单胞菌FERM BP-4429的微生物。 微生物从土壤中分离出来,不会从L-阿拉伯糖形成酸。 此外,没有直链脂肪酸21:1或19:0。

    Production of uridine
    9.
    发明授权
    Production of uridine 失效
    生产尿苷

    公开(公告)号:US4880736A

    公开(公告)日:1989-11-14

    申请号:US788812

    申请日:1985-10-18

    摘要: Uridine is produced by cultivating in a culture medium a uridine-producing microorganism, which belongs to the genus Bacillus and which is deficient in uridine nucleoside phosphorylase activity and is resistant to a pyrimidine analogue, and recovering the accumulated uridine. This method has the advantage of substantially avoiding the by-production of uracil and uridylic acid.

    摘要翻译: 通过在培养基中培养属于芽孢杆菌属的尿苷核苷磷酸化酶活性并且对嘧啶类似物具有抗性并且回收积累的尿苷的尿苷生产微生物产生尿苷酸。 该方法具有基本避免副产尿嘧啶和尿苷酸的优点。